High severity8.8NVD Advisory· Published Dec 30, 2021· Updated Jun 17, 2026
CVE-2021-20132
CVE-2021-20132
Description
Quagga Services on D-Link DIR-2640 less than or equal to version 1.11B02 use default hard-coded credentials, which can allow a remote attacker to gain administrative access to the zebra or ripd those services. Both are running with root privileges on the router (i.e., as the "admin" user, UID 0).
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Affected products
2- D-Link/DIR-2640description
Patches
Vulnerability mechanics
References
1- www.tenable.com/security/research/tra-2021-44nvdExploitThird Party Advisory
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